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Delhi's air pollution on path of reversal, say authorities; quality oscillates between poor, very poor

According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), it has increased after the impact of rain got over and the AQI is entering the 'very poor' range

Edited by: India TV News Desk, New Delhi [ Updated: November 17, 2018 13:59 IST ]

Delhi's air pollution on path of reversal

Delhi's air pollution​ Latest News: The pollution level in the national capital is on the path of reversal, authorities said on Saturday, adding that the air quality continued to oscillate between 'poor' and 'very poor' categories due to increased pollutant holding capacity of air after rainfall and stubble burning in neighbouring states.

According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), it has increased after the impact of rain got over and the AQI is entering the 'very poor' range

The overall air quality index (AQI) was recorded at 309, which comes under 'very poor' category, according to the SAFAR.

Central Pollution Control Board (CPCB) data showed the overall AQI at a 'poor' 258.

On Saturday, the PM2.5 — particles in the air with a diameter of less than 2.5 micrometres — level was recorded at 122, while the PM10 level was recorded at 228, according to Central Pollution Control Board data.

Delhi's air quality showed significant improvement on Wednesday and Thursday after rain washed away the pollutants but the rainfall also led to an increase in air capacity to hold pollutants, SAFAR said.

"Although wind speed is better (higher) but holding capacity (of air) is also high due to moisture, which is unfavourable," the SAFAR said in a report.

Fire counts from stubble burning increased in past 24 hours, which may contribute 8-10 per cent to Delhi pollution, the report said. 

An AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'.

According to CPCB data, three areas in Delhi recorded 'very poor' air quality and 31 recorded 'poor' air quality.

(With PTI inputs)

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